docs: def dinfContributingArea(self,
                               contributing_area_grid,
                               flow_dir_grid,
                               outlet_shapefile=None,
                               weight_grid=None,
                               edge_contamination=False,
                               ):
          """
          Calculates contributing area with Dinf method.
          """
          log("PROCESS: DinfContributingArea")
  
          # Construct the taudem command line.
          cmd = [os.path.join(self.taudem_exe_path, 'areadinf'),
                 '-ang', flow_dir_grid,
                 '-sca', contributing_area_grid,
                 ]
  
          if outlet_shapefile:
              cmd += ['-o', outlet_shapefile]
          if weight_grid:
              cmd += ['-wg', weight_grid]
          if not edge_contamination:
              cmd = cmd + ['-nc']
  
          self._run_mpi_cmd(cmd)
  
          # create projection file
          self._add_prj_file(flow_dir_grid,
                             contributing_area_grid)